[INFO] fetching crate trust-dns-resolver 0.21.0-alpha.2...
[INFO] checking trust-dns-resolver-0.21.0-alpha.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate trust-dns-resolver 0.21.0-alpha.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate trust-dns-resolver 0.21.0-alpha.2 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trust-dns-resolver 0.21.0-alpha.2
[INFO] finished tweaking crates.io crate trust-dns-resolver 0.21.0-alpha.2
[INFO] tweaked toml for crates.io crate trust-dns-resolver 0.21.0-alpha.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate trust-dns-resolver 0.21.0-alpha.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded openssl-probe v0.1.4
[INFO] [stderr]   Downloaded tokio-native-tls v0.3.0
[INFO] [stderr]   Downloaded schannel v0.1.19
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[INFO] [stderr]   Downloaded core-foundation v0.9.1
[INFO] [stderr]   Downloaded native-tls v0.2.8
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5183bf6cb170fc5d196c2a2a5c47d4ade4019e094f714ff12bc5f4aea47e85d8
[INFO] running `Command { std: "docker" "start" "-a" "5183bf6cb170fc5d196c2a2a5c47d4ade4019e094f714ff12bc5f4aea47e85d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5183bf6cb170fc5d196c2a2a5c47d4ade4019e094f714ff12bc5f4aea47e85d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5183bf6cb170fc5d196c2a2a5c47d4ade4019e094f714ff12bc5f4aea47e85d8", kill_on_drop: false }`
[INFO] [stdout] 5183bf6cb170fc5d196c2a2a5c47d4ade4019e094f714ff12bc5f4aea47e85d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc49647f9ccca4516862b5192118540ab46e20d477c74de0dc938132b792f8bf
[INFO] running `Command { std: "docker" "start" "-a" "bc49647f9ccca4516862b5192118540ab46e20d477c74de0dc938132b792f8bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling tokio v1.10.1
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
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[INFO] [stderr]     Checking lock_api v0.4.5
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[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.3
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[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.28
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]     Checking thiserror v1.0.28
[INFO] [stderr]     Checking trust-dns-proto v0.21.0-alpha.2
[INFO] [stderr]     Checking trust-dns-resolver v0.21.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `conn_provider`
[INFO] [stdout]   --> src/name_server/name_server_pool.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     conn_provider: P,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `conn_provider`
[INFO] [stdout]   --> src/name_server/name_server_pool.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     conn_provider: P,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.17s
[INFO] running `Command { std: "docker" "inspect" "bc49647f9ccca4516862b5192118540ab46e20d477c74de0dc938132b792f8bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc49647f9ccca4516862b5192118540ab46e20d477c74de0dc938132b792f8bf", kill_on_drop: false }`
[INFO] [stdout] bc49647f9ccca4516862b5192118540ab46e20d477c74de0dc938132b792f8bf